One thing that bothered me about my Gmail persistent search script was that the searches themselves were stored in a cookie, and thus weren't shareable between computers (and at the same time, they were visible to all Gmail users using that browser). At some point I figured out that storing searches in a contact was a solution to both of these problems, but I never had the time to actually implement this feature. Now it looks like I won't have to, since Luke Bakerhas done it for me. Yay LazyWeb.